CoCalc -- 12.6 Participation.ipynb

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ubuntu2004

Kernel: Python 3 (system-wide)

First, we will implement matplotlib and numpy. Also add the picture.

In [32]:

import matplotlib.pyplot as plt
import numpy as np

In [33]:

img = plt.imread("galaxy.png")
img.shape

Out[33]:

(530, 353, 4)

In [34]:

plt.imshow(img)

Out[34]:

<matplotlib.image.AxesImage at 0x7f51d30e7700>

In [0]:

This way, we will rotate the picture by reversing the colums of arra

In [35]:

img2 = np.array(img)
img2[:,:,:] = img2[::-1,::-1,:]
plt.imshow(img2)

Out[35]:

<matplotlib.image.AxesImage at 0x7f51d30d0b80>

In [0]: